SPM 2019 Add Maths Paper 1, Question 4Indices, Surds & Logarithms

Solved on video in English and Bahasa Melayu · 2 marks · Form 4, Indices, Surds & Logarithms · 3:13 video

The question

The following information is regarding a law of indices: (a^q)⁸ = sqrt(a) x sqrt(a) x sqrt(a) x ... x sqrt(a) (p times), where p and q are constants. State the value of p and of q.

[2 marks]

SPM 2019 Add Maths Paper 1, Question 4: the question as drawn in Eduly's video3:13

Step 1

Recall that for a positive integer m, a^m means a multiplied by itself m times.

4 more steps, each with the reason for it, in the full solution

Final answer

p = 8, q = 1/2

Where students lose marks

Watch out: combining into 8q = p/2 leaves one equation with two unknowns. Match inner exponent with inner, outer power with outer.

Watch every step of this question solved on video (3:13), with the reason behind each step and a box that checks your own answer.

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